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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022	Oct. 31, 2022
Income Tax Disclosure [Abstract]
Income tax (benefit)	$ 3.5	$ 3.4	$ 4.2	$ 1.2
Pre-tax loss	19.00%	26.40%	21.20%	15.60%
Net discrete tax expense (benefit) related to federal provision-to-return adjustment	$ (1.1)		$ (1.0)
Net discrete tax expense (benefit) related to share-based compensation		$ 0.2		$ (0.8)
Unrecognized tax benefits	$ 5.7		$ 5.7		$ 4.3

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- Definition

Income tax expense benefit of discrete tax expenses benefit related to federal provision-to-return adjustment.

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- Definition

Income tax expense benefit of discrete tax expenses benefit related to share-based compensation.

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- Definition

Income tax expense (benefit) percentage of pre tax (income) loss.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Topic 250
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Amount of unrecognized tax benefits.

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